A collaborative project to determine the distribution of Armillaria
ostoyae on the eastern slopes of the Oregon Cascades was
started in 2007. The methods and accomplishments of the 2007
field-collection stage of the project are highlighted in this
presentation. The next phase of the project will identify Armillaria
isolates to species using molecular methods. Sites positive for
Armillaria ostoyae will be associated with climate data
to determine the potential distribution (and disease activity)
of Armillaria ostoyae within the region. Data from this
region can then be added to a global Armillaria ostoyae
dataset that will help develop climate models to predict the
future changes in Armillaria ostoyae under various climate
change scenarios.

Keywords:Armillaria ostoyae, climate, Oregon
Cascades

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